Title :
Self-sealing direct-buried 600 volt secondary cable
Author :
Lawson, J.H. ; Kong, A.
Abstract :
The design of an aluminum underground secondary cable that significantly reduces field failures caused by mechanical damage to the insulation is described. It consists of a self-sealing layer between the conductor and the insulation. If the insulation is cut or punctured through to the conductor, the opening is filled by the self-sealing material, and corrosion due to AC electrolysis is prevented or greatly inhibited. The design is described, and results of comparative tests of existing self-sealing cables and the present design are reported.<>
Keywords :
cable insulation; power cables; underground cables; 600 V; AC electrolysis; cable insulation; corrosion; field failures; insulation; tests; underground power cables; Aluminum; Automatic testing; Cable insulation; Conducting materials; Conductors; Corrosion; Electrochemical processes; Leakage current; Mechanical cables; Polyethylene;
Journal_Title :
Power Delivery, IEEE Transactions on
